Driven

Tesla’s roadmap to pro­duc­ing 20 mil

- Nikola Tesla · Tesla Motors · Elon Musk

thus al­low­ing for shear trans­fer be­tween the sheets. In this ar­chi­tec­ture, the bat­tery cells func­tion as a hon­ey­comb struc­ture in much the same way as the alu­minium hon­ey­comb struc­ture be­tween car­bon fi­bre face sheets used in the crash struc­tures of modern For­mula One cars.

Us­ing the steel cas­ing of the in­di­vid­ual bat­tery cells to trans­fer shear be­tween the up­per and lower sheets, this hon­ey­comb bat­tery struc­ture gains in­cred­i­ble tor­sional stiff­ness, which is at least an or­der of mag­ni­tude bet­ter than any ex­ist­ing car. This de­sign also achieves tor­sional stiff­ness in con­vert­ibles that is higher than any ex­ist­ing sedan.

More­over, with the cells now moved closer to the cen­tre of the car, this im­proves vol­u­met­ric ef­fi­ciency, safety in case of a side im­pact, and re­duces the po­lar mo­ment of in­er­tia for bet­ter han­dling.

This com­plete rev­o­lu­tion in body and bat­tery en­gi­neer­ing achieves a 10% mass re­duc­tion, 14% range in­crease op­por­tu­nity, and mas­sive cost sav­ings due to an as­tound­ing 370 fewer parts. And even more in­cred­i­ble, this sim­pler, smaller, in­te­grated struc­tural bat­tery also has mas­sive im­pli­ca­tions for the body fac­tory of the fu­ture, in­clud­ing a 55% re­duc­tion in capex in­vest­ment per GWh, as well as a 35% re­duc­tion in floor space. At the bat­tery pack level this is worth an­other 7% re­duc­tion in $/KWh cost.

Ex­trac­tion and Min­ing – % re­duc­tion in $/KWh cost to be de­ter­mined

Apart from Tesla’s foray into nickel ex­trac­tion from nickel ore, Musk and Baglino pointed out that there are enough lithium de­posits in the state of Ne­vada to elec­trify the entire trans­porta­tion fleet

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